in28minutes/spring-microservices

Microservices using Spring Boot, Spring Cloud, Docker and Kubernetes

Spring MicroServices

Learn how to create awesome Microservices and RESTful web services with Spring and Spring Boot.

Overview

• Installing Tools
• Running Examples
• Course Overview
  • Course Steps
  • Expectations
• About in28Minutes
  • Our Beliefs
  • Our Approach
  • Find Us
  • Other Courses

Introduction

Developing RESTful web services is fun. The combination of Spring Boot, Spring Web MVC, Spring Web Services and JPA makes it even more fun. And its even more fun to create Microservices.

There are two parts to this course - RESTful web services and Microservices

Architectures are moving towards microservices.

RESTful web services are the first step to developing great microservices. Spring Boot, in combination with Spring Web MVC (also called Spring REST) makes it easy to develop RESTful web services.

In the first part of the course, you will learn the basics of RESTful web services developing resources for a social media application. You will learn to implement these resources with multiple features - versioning, exception handling, documentation (Swagger), basic authentication (Spring Security), filtering and HATEOAS. You will learn the best practices in designing RESTful web services.

In this part of the course, you will be using Spring (Dependency Management), Spring MVC (or Spring REST), Spring Boot, Spring Security (Authentication and Authorization), Spring Boot Actuator (Monitoring), Swagger (Documentation), Maven (dependencies management), Eclipse (IDE), Postman (REST Services Client) and Tomcat Embedded Web Server. We will help you set up each one of these.

In the second part of the course, you will learn the basics of Microservices. You will understand how to implement microservices using Spring Cloud.

In this part of the course, you will learn to establish communication between microservices, enable load balancing, scaling up and down of microservices. You will also learn to centralize configuration of microservices with Spring Cloud Config Server. You will implement Eureka Naming Server and Distributed tracing with Spring Cloud Sleuth and Zipkin. You will create fault toleranct microservices with Zipkin

You will learn

• You will be able to develop and design RESTful web services
• You will setup Centralized Microservice Configuration with Spring Cloud Config Server
• You will understand how to implement Exception Handling, Validation, HATEOAS and filtering for RESTful Web Services.
• You will implement client side load balancing (Ribbon), Dynamic scaling(Eureka Naming Server) and an API Gateway (Zuul)
• You will learn to implement Distributed tracing for microservices with Spring Cloud Sleuth and Zipkin
• You will implement Fault Tolerance for microservices with Zipkin
• You will understand how to version your RESTful Web Services
• You will understand how to monitor RESTful Services with Spring Boot Actuator
• You will understand how to document RESTful Web Services with Swagger
• You will understand the best practices in designing RESTful web services
• Using Spring Cloud Bus to exchange messages about Configuration updates
• Simplify communication with other Microservices using Feign REST Client

Step Wise Details

Refer each steps

Expectations

• You should know Java and Spring.
• A basic understanding of developing web applications is a bonus but NOT mandatory.
• A basic understanding of Spring Boot is a bonus but NOT mandatory. We have seperate section to introduce Spring Boot.
• A basic understanding of JPA is a bonus but NOT mandatory. We have seperate section to introduce JPA.
• You are NOT expected to have any experience with Eclipse, Maven or Tomcat.
• We will help you install Eclipse and get up and running with Maven and Tomcat.

Installing Tools

• Eclipse & Embedded Maven
• PostMan
• Git Client - https://git-scm.com/
• Rabbit MQ - https://www.rabbitmq.com/download.html

Installing Eclipse & Embedded Maven

• Installation Video : https://www.youtube.com/playlist?list=PLBBog2r6uMCSmMVTW_QmDLyASBvovyAO3
• GIT Repository For Installation : https://github.com/in28minutes/getting-started-in-5-steps
• PDF : https://github.com/in28minutes/SpringIn28Minutes/blob/master/InstallationGuide-JavaEclipseAndMaven_v2.pdf

Installing Rabbit MQ

Windows

• https://www.rabbitmq.com/install-windows.html
• https://www.rabbitmq.com/which-erlang.html
• http://www.erlang.org/downloads
• Video - https://www.youtube.com/watch?v=gKzKUmtOwR4

Mac

• https://www.rabbitmq.com/install-homebrew.html

Running Examples

• Download the zip or clone the Git repository.
• Unzip the zip file (if you downloaded one)
• Open Command Prompt and Change directory (cd) to folder containing pom.xml
• Open Eclipse
  • File -> Import -> Existing Maven Project -> Navigate to the folder where you unzipped the zip
  • Select the right project
• Choose the Spring Boot Application file (search for @SpringBootApplication)
• Right Click on the file and Run as Java Application
• You are all Set
• For help : use our installation guide - https://www.youtube.com/playlist?list=PLBBog2r6uMCSmMVTW_QmDLyASBvovyAO3

Diagrams

• Check notes.md

Troubleshooting

• Refer our TroubleShooting Guide - https://github.com/in28minutes/in28minutes-initiatives/tree/master/The-in28Minutes-TroubleshootingGuide-And-FAQ

Youtube Playlists - 500+ Videos

Click here - 30+ Playlists with 500+ Videos on Spring, Spring Boot, REST, Microservices and the Cloud

Keep Learning in28Minutes

in28Minutes is creating amazing solutions for you to learn Spring Boot, Full Stack and the Cloud - Docker, Kubernetes, AWS, React, Angular etc. - Check out all our courses here

spring-microservices's Issues

Zuulu API gateway for service with authentication

If currency exchange service requires an authentication then how to do forward the API call from Zuulu API gateway.

Any help ?

New code pull issue from master

Today I have pulled the code from master and trying to start the server and got below error.....Can anyone help please.
2020-07-14 20:08:59.542 ERROR 16340 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: URL [jar:file:/C:/Users/Sanku/.m2/repository/io/springfox/springfox-oas/3.0.0-SNAPSHOT/springfox-oas-3.0.0-SNAPSHOT.jar!/springfox/documentation/oas/web/OpenApiControllerWebFlux.class]; nested exception is java.lang.IllegalArgumentException: Could not find class [springfox.documentation.spring.web.OnReactiveWebApplication]
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.scanCandidateComponents(ClassPathScanningCandidateComponentProvider.java:452) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:315) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:276) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ComponentScanAnnotationParser.parse(ComponentScanAnnotationParser.java:132) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:295) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:249) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:599) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:310) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:249) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:599) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.access$800(ConfigurationClassParser.java:110) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorGroupingHandler.lambda$processGroupImports$1(ConfigurationClassParser.java:811) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at java.util.ArrayList.forEach(Unknown Source) ~[na:1.8.0_152]
at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorGroupingHandler.processGroupImports(ConfigurationClassParser.java:808) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorHandler.process(ConfigurationClassParser.java:779) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:192) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:319) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:236) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:280) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:96) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:707) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:533) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) [spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) [spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) [spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at com.in28minutes.rest.webservices.restfulwebservices.RestfulWebServicesApplication.main(RestfulWebServicesApplication.java:15) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_152]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_152]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_152]
at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_152]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.3.1.RELEASE.jar:2.3.1.RELEASE]
Caused by: java.lang.IllegalArgumentException: Could not find class [springfox.documentation.spring.web.OnReactiveWebApplication]
at org.springframework.util.ClassUtils.resolveClassName(ClassUtils.java:334) ~[spring-core-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ConditionEvaluator.getCondition(ConditionEvaluator.java:124) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:96) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:88) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:71) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.isConditionMatch(ClassPathScanningCandidateComponentProvider.java:513) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.isCandidateComponent(ClassPathScanningCandidateComponentProvider.java:496) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.scanCandidateComponents(ClassPathScanningCandidateComponentProvider.java:430) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
... 34 common frames omitted
Caused by: java.lang.ClassNotFoundException: springfox.documentation.spring.web.OnReactiveWebApplication
at java.net.URLClassLoader.findClass(Unknown Source) ~[na:1.8.0_152]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_152]
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) ~[na:1.8.0_152]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_152]
at java.lang.Class.forName0(Native Method) ~[na:1.8.0_152]
at java.lang.Class.forName(Unknown Source) ~[na:1.8.0_152]
at org.springframework.boot.devtools.restart.classloader.RestartClassLoader.loadClass(RestartClassLoader.java:144) ~[spring-boot-devtools-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_152]
at java.lang.Class.forName0(Native Method) ~[na:1.8.0_152]
at java.lang.Class.forName(Unknown Source) ~[na:1.8.0_152]
at org.springframework.util.ClassUtils.forName(ClassUtils.java:284) ~[spring-core-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.util.ClassUtils.resolveClassName(ClassUtils.java:324) ~[spring-core-5.2.7.RELEASE.jar:5.2.7.RELEASE]
... 41 common frames omitted

Internationalised the messages

Build Failure for Maven Plugin

Hi,

I am getting below error while running the currency-exchange service for building image for docker.

build-failure.txt

Forbidden accessing h2 console

In the step "Step 30 - Creating User Entity and some test data", I was successfully able to run the spring boot app but when I try to login to h2 database in http://localhost:8080/h2-console using the options you mentioned, I get a "Whitelabel Error page" indicating "Forbidden status 403" . Do you have any idea why this is happening? I cross checked the contents of your repo with mine and there is no change.

Resolved [org.springframework.web.method.annotation.MethodArgumentTypeMismatchException: Failed to convert value of type 'java.lang.String' to required type 'java.util.Locale'; nested exception is java.lang.IllegalArgumentException: Locale part "en-US,en;q=0.9" contains invalid characters]

While trying the "Step 18-International for Restful Services", I got the following error.

[nio-8080-exec-1] .m.m.a.ExceptionHandlerExceptionResolver : Resolved [org.springframework.web.method.annotation.MethodArgumentTypeMismatchException: Failed to convert value of type 'java.lang.String' to required type 'java.util.Locale'; nested exception is java.lang.IllegalArgumentException: Locale part "en-US,en;q=0.9" contains invalid characters]
When I try to access, via Postman' the URL: http://localhost:8080/hello-world-internationalized
WIthout specifying the "Accept-Language" and I got 400 bad Request.
I created the project using Spring Intializr while picking spring boot 2.1.15, Java, Maven Project and Dependencies like Web, DevTools, JPA and H2.

Cannot load environment

Hi sir. I am getting this Permission denied error on my ubuntu machine. can you help me in this?
at org.springframework.cloud.config.server.environment.JGitEnvironmentRepository.refresh(JGitEnvironmentRepository.java:299)
at org.springframework.cloud.config.server.environment.JGitEnvironmentRepository.getLocations(JGitEnvironmentRepository.java:246)
at org.springframework.cloud.config.server.environment.MultipleJGitEnvironmentRepository.getLocations(MultipleJGitEnvironmentRepository.java:146)
at org.springframework.cloud.config.server.environment.AbstractScmEnvironmentRepository.findOne(AbstractScmEnvironmentRepository.java:51)
at org.springframework.cloud.config.server.environment.MultipleJGitEnvironmentRepository.findOne(MultipleJGitEnvironmentRepository.java:186)
at org.springframework.cloud.config.server.environment.CompositeEnvironmentRepository.findOne(CompositeEnvironmentRepository.java:52)
at org.springframework.cloud.config.server.environment.EnvironmentEncryptorEnvironmentRepository.findOne(EnvironmentEncryptorEnvironmentRepository.java:54)
at org.springframework.cloud.config.server.environment.EnvironmentController.labelled(EnvironmentController.java:123)
at org.springframework.cloud.config.server.environment.EnvironmentController.defaultLabel(EnvironmentController.java:107)
at sun.reflect.GeneratedMethodAccessor143.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:889)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:794)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1039)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:897)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:108)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:853)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1587)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.eclipse.jgit.api.errors.JGitInternalException: Permission denied
at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:334)
at org.springframework.cloud.config.server.environment.JGitEnvironmentRepository.checkout(JGitEnvironmentRepository.java:416)
at org.springframework.cloud.config.server.environment.JGitEnvironmentRepository.refresh(JGitEnvironmentRepository.java:282)
... 65 more
Caused by: java.io.IOException: Permission denied
at java.io.UnixFileSystem.createFileExclusively(Native Method)
at java.io.File.createNewFile(File.java:1012)
at org.eclipse.jgit.util.FS_POSIX.createNewFileAtomic(FS_POSIX.java:446)
at org.eclipse.jgit.internal.storage.file.LockFile.lock(LockFile.java:164)
at org.eclipse.jgit.dircache.DirCache.lock(DirCache.java:610)
at org.eclipse.jgit.dircache.DirCache.lock(DirCache.java:251)
at org.eclipse.jgit.dircache.DirCache.lock(DirCache.java:329)
at org.eclipse.jgit.dircache.DirCache.lock(DirCache.java:295)
at org.eclipse.jgit.lib.Repository.lockDirCache(Repository.java:1281)
at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:268)
... 67 more

ZuulLoggingFilter not invoking

ZuulLoggingFilter is not showing the log

Zipkin dependencies are not available in http://start.spring.io/

The Zipkin dependencies which are mentioned in packtpub are not available in http://start.spring.io/

Incorrect location url when a new post is added

spring-microservices/02.restful-web-services/src/main/java/com/in28minutes/rest/webservices/restfulwebservices/user/UserJPAResource.java

Line 107 in d467683

URI location = ServletUriComponentsBuilder.fromCurrentRequest().path("/{id}").buildAndExpand(post.getId())

hi @in28minutes,

Thanks a lot for the great course. I might be wrong, but it looks like the location header which is returned when a new post is added is incorrect. So the full url will be
/jpa/users/1/posts/5
However it looks like doesn't have and an endpoint to find post by an id, something like

@GetMapping("/jpa/users/{userId}/posts/{id}")

Best Regards,
Anton Balaniuc

springboot microservices gatewayservice routing issue

Environment Detail:
spring boot version 2.6.6
spring-cloud-gateway-server 3.1.1.jar

Configuration in application.properties:
spring.cloud.gateway.discovery.locator.enabled=true
spring.cloud.gateway.discovery.locator.lowerCaseServiceId=true

Port Detail:
ProductGatewayService: 5069
PssTitleService: 5071

With the above set up If I am invoking the below url I am getting proper response.
http://localhost:5069/psstitleservice/api/productService/getTitleData - working fine

In actual scenario: I am having a context path with my gateway service. /cmdgservices
With the context path, I have tried many things but none of the below way is working.

Way 1 :
spring.cloud.gateway.discovery.locator.predicates[0].name: Path
spring.cloud.gateway.discovery.locator.predicates[0].args[pattern]: "'/'+psstitleservice+'/**'"

Way 2 :
spring.cloud.gateway.discovery.locator.predicates[0].name: Path
spring.cloud.gateway.discovery.locator.predicates[0].args[pattern]: "'cmdgservices/'+psstitleservice+'/**'"

Way 3 :
spring.cloud.gateway.discovery.locator.predicates[0].name: Path
spring.cloud.gateway.discovery.locator.predicates[0].args[pattern]: "'cmdgservices/'+psstitleservice+'/**'"
spring.cloud.gateway.discovery.locator.url-expression: 'lb://'+psstitleservice

Way 4 (In Java configuration):
@configuration
public class ApiGatewayConfiguration {
@bean
public RouteLocator gatewayRouter(RouteLocatorBuilder builder) {
return builder.routes()
.route("test_route", p -> p.path("/psstitleservice")
.uri("http://localhost:5071"))
.build();
}

I have already invested 3 days behind it. I would be grateful to any helping hand. Thanks in advance.

Step21:Using Feign REST Client for Service Invocation

In SpringBoot 2.3.0 M4, When We try to AutoWired "CurrencyExchangeServiceProxy" in "CurrencyConversionController" It doesn't work:
@Autowired private CurrencyExchangeServiceProxy serviceProxy;
"Couldn\t Autowired, No Beans of "CurrencyExchangeServiceProxy" type found. I double-check the class "CurrencyConversionBean".

Does anyone has any idea?

step40 & step41 fail using spring boot 2.1.2.RELEASE

"Updates to step40" don't work when upgrading Spring Boot 2.1.2.RELEASE. Spring Boot don't load AMQP dependencies and Sleuth is not sending traces to RabbitMQ default queues. Maybe Sampler declarations in projects are the cause.

Please could you give us a better solution??

Thanks a lot! Regards!

Closing issues older than a year.

Closing issues older than a year.

Originally posted by @in28minutes in #6 (comment)

invalid character 's' looking for beginning of value

I am getting error while running docker-compose up command from command prompt.
Error:
"invalid character 's' looking for beginning of value"

step 8 failing with Spring Boot 2.1.3

Hi @in28minutes, I've problems trying to running the app with the step mentioned in the video course (step 8), let me to share you the error trace: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userResource': Unsatisfied dependency expressed through field 'service'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.in28minute.user.UserDaoService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.in28minute.user.UserDaoService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

The 'UserResource' class has the @RestController annotation. And the 'UserDaoService' the @component annotation. So I don't know what's happening, I'll be taking a look to continue with the course.

I really appreciate any help you can provide.
Regards,
Zuriel

Steo29 always throws me connect timed out

This application has no explicit mapping for /error, so you are seeing this as a fallback.

Thu Nov 28 22:14:16 IST 2019
There was an unexpected error (type=Internal Server Error, status=500).
connect timed out executing GET http://currency-exchange-service/currency-exchange/from/AUD/to/INR

Cloning fails on Windows 10

Receive the following when cloning via git bash on Windows 10

$ git clone https://github.com/in28minutes/spring-microservices.git Cloning into 'spring-microservices'... remote: Enumerating objects: 937, done. remote: Total 937 (delta 0), reused 0 (delta 0), pack-reused 937 Receiving objects: 100% (937/937), 90.94 MiB | 11.81 MiB/s, done. Resolving deltas: 100% (424/424), done. warning: unable to access '01.framework-introductions/jpa-in-10-steps/src/main/java/com/in28minutes/learning/jpa/jpain10steps/.gitattributes': Filename too long error: unable to create file 01.framework-introductions/jpa-in-10-steps/src/main/java/com/in28minutes/learning/jpa/jpain10steps/JpaIn10StepsApplication.java: Filename too long error: unable to create file 01.framework-introductions/jpa-in-10-steps/src/main/java/com/in28minutes/learning/jpa/jpain10steps/UserDaoServiceCommandLineRunner.java: Filename too long error: unable to create file 01.framework-introductions/jpa-in-10-steps/src/main/java/com/in28minutes/learning/jpa/jpain10steps/UserRepositoryCommandLineRunner.java: Filename too long fatal: cannot create directory at '01.framework-introductions/jpa-in-10-steps/src/main/java/com/in28minutes/learning/jpa/jpain10steps/entity': Filename too long warning: Clone succeeded, but checkout failed. You can inspect what was checked out with 'git status' and retry with 'git restore --source=HEAD :/' '